The Titanium Field GuidePicks of the month

Omega Seamaster Ploprof 1200M Titanium

227.90.55.21.04.001 Archive · used only

The Omega Seamaster Ploprof 1200M Titanium was a 55 mm Grade 5 titanium dive watch with an Omega 8912 automatic movement. At 55 mm across, no other titanium dive watch in the guide is larger, out of 359. At 175 g on its bracelet, only three of the 47 other titanium dive watches weighed on a bracelet are heavier. On the maker's specification no steel touches the skin, so the guide lists it as nickel-free. It is no longer made, so this page is a reference for buying one used.

All Omega watchesDiver watchesLightest, rankedGrade 5 titaniumOn a titanium bracelet
Price
$9,800
Material
Titanium
Grade / type
Grade 5
Weight
175 g (with bracelet)
Water resistance
1200 m
Reference
227.90.55.21.04.001
Type
Diver
Case diameter
55.0 mm
Origin
Switzerland
Movement
Automatic (Co-Axial Master Chronometer)
Caliber
Omega 8912
Power reserve
60 h
Complications
Date
Colour
Grey
Surface treatment
Brushed and polished
Finish technology
Natural finish
Caseback
Sapphire
Nickel-free
Maker states none
Bracelet / strap
Grade 2 titanium mesh bracelet
Matching bracelet
Standard
Crystal
Sapphire, AR coated
Display back
No
Dial
Black, orange accents; ceramic bezel
Dial colours
Black
Lume
Super-LumiNova
Availability
No longer offered
Status
No longer offered (the maker page it cites reads "Sorry, but this watch is no longer available")
Not published
Thickness, Lug-to-lug, Hardness, Construction
High confidence Verified Jul 2026 Source: The 1916 Company Maker ↗
Facts are free to cite with a link.
Reader reviews & photosContribute photo or review
See it in the interactive guideGet the monthly letterContribute a photo or review

Similar watches

Alternatives to the Omega Seamaster Ploprof 1200M Titanium

More watches from Omega

Frequently asked questions

Is the Omega Seamaster Ploprof 1200M Titanium nickel-free?

On the maker's published specification, nothing that touches the skin is steel: the case, caseback, crown and bracelet with its clasp are all non-steel. The guide records what the maker publishes and has not tested the watch, so if you react to nickel, confirm the contact points with the maker before buying.

What grade of titanium is the Omega Seamaster Ploprof 1200M Titanium?

Grade 5, as stated by the maker. The caseback is sapphire.

What size is the Omega Seamaster Ploprof 1200M Titanium?

The case is 55 mm across. It is water resistant to 1,200 m.

How much does the Omega Seamaster Ploprof 1200M Titanium weigh?

About 175 g on its bracelet.

How much does the Omega Seamaster Ploprof 1200M Titanium cost, and is it available?

It is no longer made, so the only way to buy one is used. Its list price when it was in production was $9,800.

All Omega watches · Diver watches · All 1,960 watches

Learn: Titanium grades · Surface treatments · Why titanium scratches · How to read a spec

How we verify & grade · Image & Trademark Policy · Terms & Conditions · Privacy Policy

Report an error on this page · how corrections work